philipsborn



(No Model.) 2 Sheets-Sheet 2. A. PHILIPSBORN `n M. SCHIEMANN.

Patented Jan. 24, 1893.

Utvrrnn Srnrns Afrnnr rtree.

ALEXANDER PIIILIPSBORN AND MAX SOHIEMANN, OF BERLIN, GERMANY, ASSIGNORSTO SIEMENS du I-IALSKE, OF SAME PLACE.

ELECTRIC Loooivlorlve.

SPECIFICATION forming part of Letters Patent No. 490,307, datedJanuary'Bt, 1893.

Serial. No. 429,230. (No model.)

b all whom t may concern.-

Be it known that we, ALEXANDER PHILIPS- BORN and MAX SCHIEMANN, subjectsof the King of Prussia, residing at the city of Berlin, in the Kingdomof Prussia, German Empire, have invented certain new and usefulImprovements in Transmitting Devices Acting byFrictionforElectrically-OperatedVehicles5 and we do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to malteand use the same.

This invention has reference to electro-motive cars wherein the tractionwheels are frictionally driven by the motor.

This invention consists of a construction whereby the weight of both themotor and car body is utilized to increase the frictional engagement ofthe driving and driven parts. The traction wheels and motor are movablerelative to the body of the car so that the frictional relation of themotor and traction wheels will not be disturbed by shocks or jars.

Referring to the accompanying drawings in which similar letters ofreference indicate corresponding parts throughout: Figure 1, is a crosssectional elevation of an electro-motive car showing the application ofour invention; Fig. 2, a side elevation of Fig. 1. Fig. 3, is a crosssectional elevation showing a modification; Fig. 4, a side elevation otFig. 3 Fig. 5, a cross sectional elevation showing another modification;Fig. 6, a side elevation of Fig. 5 5 Fig. 7, a cross sectional elevationshowing a further modification; and Fig. 8, a side elevation of Fig. 7,partly in section.

M, M, in the several figures represent the traction wheels ot` thetruck; M', the axle fixed to the said wheels in the usual manner.

N, are the journal boxes of the car axles which in the practice of ourinvention functionally serve to keep the wheels in the right horizontalposition in reference to the car and the mechanism but do not supportany weight whatever.

D, in the several views is the motor supporting frame which, throughinterposed springs H, H, in Figs. 1 and 2 or H Fig. 4, supports the bodyof the car; the bed sill E ot which is represented; and the said motorframe D bears upon the truck Wheels through the interposed medium of thefrictional driving mechanism.

The frictional driving mechanism is herein illustrated under variousmodifications. The construction in Figs. 1 and 2 consists in frictionrollers L, L, placed vertically above and upon the traction wheels M, M5 the shaft A of the electro-motor bearing the said friction wheels andreceiving the weight of the car and frame D, through the journals C, C,which are bolted by means of the screw threaded rods F, to the frame D.The motor B, is secured to the frame D by means of cross rods K, K,supported in bearings I, I, also bolted to the frame D. The rods Fextend vertically through the bed sill E of the car; the same beingpermitted to have vertical play in the tubes or guides Gr, G, therein.The function of the upper extremities of the rods F, thus guided is toprevent the horizontal displacement of the car body upon the truck. Thelower extremities O of the rods F, are supported in the yoke R,depending from the frame D, and the journal box N, being freely movablein a vertical direction thereon, is prevented thereby fromhorizontaldisplacement. The frictional driving wheels L, L, arecircumferentially grooved as illustrated in Fig. 1, for the purpose offitting the iange of the traction wheels so as to prevent lateralvibration of 'the parts with reference to one another.

In Figs. 3 and 4 independent wheels L are attached to the axle M of thetraction wheels M, for the purpose of receiving the frictionalapplication of motive power. Upon the wheels L', L', rest. thefrictional driving Wheels L2L2 of the motor; the shaft A of the motorreceiving the weight of the car and motor frame D, through the journalboxes C, C, as before. The said boxes in this instance, however, arelocated beneath the frame D, in lieu of above the same. The journalboxes N of the car axles, as also the said journal boxes C, of the motorare located within and between the traction wheels M, in lieu of beingexterior thereto, and the journal box N is kept in its proper positionby the guide rods O, in a similar manner as before described. Thecharacter of the spring l'I, illustratedin Figs. 3 and 4 is adapted toitself retain the car E, and motor frame D,from horizontal displacement;the guide rods F therefore being dispensed with.

In Figs. 5 and 6, the axle A of the motor is arranged concentricallywith the car axle M, rotating independently at a greater speed ofrevolution. The motor shaft A is supported in journal boxes O, uponwhich the motor frame D, and the car E, rest through interposed springs.The journal boxes C located within and between the traction wheels M, M,bear gudgeons P, on the extremities of which transmission frictionwheels L4, are supported,so as to run upon the internal friction rimsM2, of the traction wheels M, and the friction wheels for the motorconsist in collars L3, welded or attached to the extremities of thetubular shaft A', resting on the said transmitting wheels L4, asillustrated in Fig. 5. The weight of the car, according to theconstruction thus described, rests upon the journal boxes U, C, and thetubular axle A,and is received by the tires of the traction wheels M, M,through the interposed transmitting wheel L4, that supports the ends ofthe said tubular axle A of the motor.

In Figs. 7 and 8, the power of the motor is also transmitted to thetraction wheels M, M, upon an internal friction rim M2, upon which thefrictional driving wheels L2rest, supporting the weight of the car. Themotor and its shaft A are however, in this instance located apart fromand beneath the car axle M the motor shaft being supported in thejournal boxes C, C, on which the motor frame D rests, in the mannerpointed out with reference to the foregoing construction. The journalboxes of the car axle M are in thisl instance above the motor frame D,and supported on guides O in the yoke O', so as to be horizontallyretained in their proper relative positions with the other parts. Thejournal boxes L are free from the rods O, and the weight of the car E,and motor frame-D, thereby rests solely upon the frictional drivingmechanism. The spiral springs l-I, interposed between the bed sill E ofthe car and the motor frame D, are contained in telescoping supports Q,that are adapted to retain the parts from horizontal displacement withreference to one another in a similar manner as do the rods F, serve inFigs. l and 2.

It will be observed that in the construction set forth in Figs. '7 and8, a very large diameter of traction wheel is admissible which is deemedsometimes desirable.

In the operation of the mechanism constructed as herein set forth, thewhole weight of the motor, the car body, andioadthereon is utilized topromote the adhesion or bite of the frictional power transmitting wheelsupon one another, so that slip is insured against, and the transmissionrendered practically as positive as would be the case in the instance ofthe usual tooth gear wheels. However, within the meaning of ourinvention any load or weight or pressure other than that indicated maybe employed to maintain the power transmitting contact of the wheels.

Having thus fully described our invention, what we claim and desire tosecure by Letters Patent is:-

1. The combination, in an electro locomotive car, of the tractionwheels, a truck frame and electro-motor supported by the same andmovable relative to the traction wheels, means for frictionallytransmitting power from the motor shaft to said traction wheels, and acar body exert-ing its weight upon the transmission mea-ns andelastically supported upon said track frame to vibrate independent ofthe motor .and traction wheels.

2. The combination in an electro-locomotive car, of the traction wheels,axle boxes therefor guided so as to be capable of vertical motion, atruck frame and electro motor supported by the same and movable relativeto the traction wheels, means for frictionally transmitting power fromthe motor shaft to said traction wheels, and a car body exerting itsweight upon thev transmission means and elastically supported upon saidtruck frame, the arrangement being such that the traction wheels, motor,and car body may conjointly vibrate or the said Wheels and motor vibraterelative to the body, so as to preserve the frictional engagement,substantially as set forth.

3. The combination in an electro locomotive car of the traction wheels,a truck frame and an electro motor supported by the same and movablerelative to the traction wheels,

means for frictionally transmitting power mit the latter to vibrateindependent of the i motor and traction wheels, substantially as setforth.

4:. In an electro-motive car the combination of the traction wheelshaving internal rims, an electro-motor, a suitable carrying framesupporting the motor and the car, a tubular shaft for the motorconcentric with and surrounding the car axle, journal boxes for the saidshaft located between the traction wheels supporting the carrying frame,frictional power transmitting wheels on the extremities of said motorshaft, and a transmitting wheel interposed in vertical line between thesaid wheels on the motor shaft and the internal rims of the tractionwheels.

5. In an electro-motive car the combination of the traction Wheelshaving internal rims, an electro-motor, a suitabie carrying framesupporting the motor and the car, a tubular 5 shaft for the motorconcentric with and snrrounding the car axle, journal boxes for the saidshaft located between the traction Wheels supporting the carrying frame,frictional power transmitting Wheels on the extremities Io of said motorshaft, and a transmitting Wheel interposed in vertical line between thesaid Wheels on the motor shaft and the internal rims of the tractionWheels.

In testimony whereof We have axed our signatures in presence of twoWitnesses.

ALEXANDER PHILIPSBORN. MAX SOI-IIEMANN. Witnesses:

MAX PIEPER, MAX WAGNER.

